Definition of "waker-upper" []

• Someone or something who wakes people up. (noun)

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• "I find that the best waker-upper is water with lemon zest and lemon juice."
• "Now, that was a better waker-upper than a triple jolt of java."
• "This sleek dock/speaker system/waker-upper looks like a modern take on those twin-belled alarm clocks of yesteryear."